Contrast media reservoir cap



FIG. 1 is a top perspective view of a contrast media reservoir cap, showing my new design;

FIG. 2 is a front elevational view thereof, the left side, right side and rear elevational views thereof being identical;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a bottom perspective view thereof.

The structure shown in phantom is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a contrast media reservoir cap, as shown and described. 